Feed-water regulator.



W. E. ZIERDEN.

FEED WATER REGULATOR.

APPLICATION FILED r1313. 16, 1912 1,051,302, Patented Jan.21, 1913.

Imvcmor attorneys WILLIAM E. ZIERDEN, OF J'OHNSONBURG, PENNSYLVANIA.

FEED-WATER REGULATOR.

Specification of Letters Patent.

Patented Jan. 21, 1913.

Application filed February 16, 1912. Serial No. 678,109.

T 0 all whom it may concern:

Be it known that I, WILLL\ M E. ZIERDRN. a citizen of the United States, residing at Johnsonburg, in the county of Elk and State of Penns lvania, have invented certain new and use ul Improvements in Feed-lVater Regulators; and I do hereby declare the following to be a full, clear, and exact description of the invention. such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to feed water regailators, and has for an object to provide a device automatically actuated and controlled from the height of the water in the boiler and embodying new and improved features of reliability, accuracy and action.

A. further object of the invention is to provide improved means whereby the expansible member common in such devices is more quickly and readily acted upon by the heat differential between water and steam.

\Vith these and other objects in view the invention comprises certain novel constructions, combinations, and arrangement of parts as will be hereinafter more fully described and claimed.

The drawing is a view largely diagrammatical, partly in section, showing the improved structure.

In the drawing a water column is presented at 10 being substantially the usual and ordinarywater column employed in steam boilers with a nipple 11 connected therewith at the normal or desired water line, and with a second nipple 12 also communicating therewith below the normal or desired water line. From the nipple 11 a pipe 13 extends upwardly which communicates with a pipe 14, such pipe 14 being rigidly mounted at its lower end in any approved manner, as by engagement with the feed water pipc'lo. It is understood that the pipes 14 and 13 do not communicate with the feed water pipe 15, but only use such feed water pipe as a base for connection. At its upper end the pipe 14 is provided with a fitting 16 whichaccommodates afulcrum lug 17, which in turn is pivoted to a lever 18. Lever 18 is also pivotedto a rod 19 which is likewise rigidly secured to the same base as the pipe 14. The lever 18 is slidably connected with a rod 20 which carries a spring 21 andis in turn connected with a rod 22 carrying at its opposite end the valve be apparent that when the pipe 11 is e'xpanded under the action of heat the lever 18 will be raised to raise the rod 22 and valve and that when the pipe It contracts the valve is automatically closed. At times, for instance when the water in the boiler becomes cold, the pipe 14 is abnormally contracted, and the spring 21 is provided to compensate for such abnormal contraction and prevent fracture of the parts. i

To insure the ready filling and emptying of the pipe 14, a pipe 26 is also rigidlysecared to the same base shown as the feed water pipe 15, and is connected with the pipe 1 1 by a nipple 27. The two pipes are also connected adjacent their bottoms by a by-pass pipe 28, such pipe 26 communicating by means of a pipe 29 with the nipple 12 below the normal or desired water line. By connecting up the pipes in the manner just described the pipe 14 fills with water immediately upon the water in the column 10 rising above the opening of the nipple 11, and immediately upon the falling of the water below such line the pipe is instantly and entirely emptied and filled with steam. It must be a parent that by such immediate filling an emptying of water and the ultimate filling with steam, the

valve will be actuated to open and closepromptly upon a ver slight rise and fall of the water line within the boiler.

I claim:

1. In a feed water regulator, the combination with a feed pipe and valve, of a rod positioned to control the valve, a lever fulcrumed to a fixed object and pivotally connected with the rod, an expansible pipe bearing against the lever and connected at the desired water line, and a second pipe connected below the water line and communicating with the first mentioned pipe adjacent its top and bottom.

2. In a feed water regulator, the combination with a feed pipe and valve. of a rod positioned to control the valve, a lever fulcrumed to a stationary object and pivoted to the rod, two pipes connected with a. stationary object at their lower ends and one of the pipes bearing against the lever, said last mentioned pipe communicating with the normal water line, and by-passes forming communication between the two pipes adjacent their tops and bottoms.

3. In a feed water regulator, the combiand a valve for controlling the same, 0 a pipe rigidly secured to a stationary object and adapted to control the valve by expansion and contraction, said pipe communicating with the water column at the desired water line, and a second pipe rigidly secured to a stationary object and communicating with the first mentioned pipe at its top and bottom, and communicating with the water column below the desired water line.

a lever bearing upon the opposite end of one of said pipes and adapted to control the 3 inlet valve, pipes forming communication between the aforesaid pipes both at their upper and lower ends, a pipe communicating with the pipe-supporting the lever and with the Water column, the communication with the water column being at the desired water level and with the pipe at the posi tion of the communicating pipe, a second pipe communicating with the other of the first mentioned pipes and with the water column below the desired water level, the

communication with the pipe being also at the communicating pipe.

In testimony whereof I affix my signature in presence of two witnesses.

WILLIAM E. ZIERDEN. \V-itnesses F. S. ODoNnEL, F. W. BAYLESS. 

